What does "lb." stand for?

A:

Quick Answer

The acronym "lb." stands for pound, an imperial measurement of mass. Mass is a measure of how much matter is in a substance or object. The pound is equal to 16 ounces, which means that any amount of ounces can be converted to pounds by dividing them by 16.

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Pounds are a standard imperial measurement unit, which is equivalent to the kilogram in the metric system. One pound is equal to 0.4536 kilograms. To convert a number of pounds to kilograms, multiply the pounds by 2.2046.

The acronym "lb." originally came from the Roman unit of measurement, "libra," which was equivalent to 12 Roman ounces.